NEUTRON SHIELD STRUCTURE AND NEUTRON IRRADIATION CHAMBER

摘要

PROBLEM TO BE SOLVED: To overcome conventional problems by providing a neutron shield structure which effectively minimizes activation of walls of a chamber for dealing with neutrons and which can be produced through a shorter process without having to rely on expertise of specialists, and to reduce the amount of iron used for an inspection door of a neutron irradiation chamber.;SOLUTION: The present invention is focused on providing shield body made of a boron-containing resin on a chamber side, and securing a predetermined distance between each wall and the respective shield body. A neutron shield structure of the present invention comprises a support body and a shield body, and is configured to suppress activation of walls by neutrons. A thin film-like or plate-like shield body made of the boron-containing resin is fixed on a support body. The neutron shield structure is installed such that the support body is on a wall side and the shield body is on a neutron-absorbing side.;SELECTED DRAWING: Figure 4;COPYRIGHT: (C)2016,JPO&INPIT